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October 1, 1991Journal of Animal Ecology180 citations

Resource Partitioning and Niche Shift in Arctic Charr Salvelinus alpinus and Brown Trout Salmo trutta

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ALArnfinn LangelandJLJan Henning L'Abée‐LundBJBror Jönsson

Key Points

  • Investigate resource partitioning, dietary habits, and spatial niche shifts between coexisting Arctic charr (Salvelinus alpinus) and brown trout (Salmo trutta).
  • Analyzed habitat selection, depth distribution, and stomach contents of Arctic charr and brown trout in sympatric and allopatric lake populations.
  • Brown trout predominantly occupy food-rich littoral zones, displacing Arctic charr to pelagic and deeper benthic habitats when both species co-occur.
  • Dietary overlap decreases in sympatry as brown trout feed mainly on littoral benthos while Arctic charr shift toward pelagic zooplankton.

Abstract

A. Langeland, , B. Jonsson, N. Jonsson, Resource Partitioning and Niche Shift in Arctic Charr Salvelinus alpinus and Brown Trout Salmo trutta, Journal of Animal Ecology, Vol. 60, No. 3 (Oct., 1991), pp. 895-912

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Cite This Study

Langeland et al. (1991) studied this question.

synapsesocial.com/papers/6a0c1d385712c53037e881c5https://doi.org/10.2307/5420
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